Never took a Chem class in H.S., never took a Physics class either...
And the argument could be made that anything over basic Algebra is a waste of time anyway.....
BTW, H.S.'ed two kids....K-12. They are both tax slaving productive American's now.
Again I stress I am not against home schooling. I needed to have chemistry and physics to get into my engineering major ( and that was a long time ago). Not everyone is going to need to same set of classes in order to live well. Not every problem can be fixed with a single solution.